Mediocre crank

Technical questions and answers concerning all models of VW diesel vehicles.

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greg lousy
Turbo Charger
Posts: 230
Joined: Thu Apr 05, 2012 12:22 am
Location: Rhode Island

Mediocre crank

Post by greg lousy »

Crank on jetta seems weak but im not sure if its due to the starter or if its just that i reringed engine and am used to cranking through less compression.
Starter is old. Definitely replacing bushing in trans case. Do these motors tend to weaken over time? Im debating replacing starter but dont want to find myslef in the same situation only 100 bucks poorer.
Various vehicles in various states
Fatmobile
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Posts: 7564
Joined: Wed Oct 30, 2002 10:28 pm
Location: north central Iowa

Re: Mediocre crank

Post by Fatmobile »

Crank it for a long while then feel the posts on the starter,
the cable ends on the battery,
including the ground cable ends.
If you feel any warmth there is a bad connection/contact.
The gear reduction starters are normally kind of slow but good connections might help improve it.
'91 Golf gasser converted to a 12mm pump, M-TDI.
'84 1.6TD Rabbit with a VNT-15 turbo, still setup to run on vegetable oil.
'84 GTI with 1.7TD pistons and intercooled.
2003 TDI wagon
2000 TDI Jetta.
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